This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAID32X400S, with the same bore, stroke, output force, port and mounting, so it fits the same application. The SAI replacement keeps the same ISO 15552 mounting interface, bore, stroke, output force and accessories, so it drops straight into existing fixtures. It is the current-production version of this cylinder with an upgraded piston seal.
Airtac SID Series Double-Rod Cylinder SID32X400S
The AirTAC Airtac SID Series Double-Rod Cylinder SID32X400S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 400mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAID32X400S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ32 mm
- Stroke400 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- StatusDiscontinued → SAID32X400S
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SID Series Double-Rod Cylinder SID32X400S
The AirTAC SID32X400S is a discontinued double-acting double-rod ISO 15552 cylinder where a rod exits both ends on one piston, making push and pull force equal at 345 N (@0.5 MPa). The direct replacement is the SAID32X400S, reusing the same G1/8 port, M10x1.25 rod thread, and 27 mm cushion. The SAI upgrade features a two Y-shaped one-way piston seal for low start-up pressure and long life.
With a 400 mm stroke and 12 mm rod, external guides are recommended to manage side-load and rod-bending. The -S suffix provides a piston magnet for legacy CS1-B/DS1-B switches. A plain cylinder drifts on air loss; cushions only decelerate, so use an external rod lock for held loads.
Airtac SID Series Double-Rod Cylinder SID32X400S Technical Specifications
| Model | Airtac SID Series Double-Rod Cylinder SID32X400S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAID32X400S |
| Bore size | Ø32 mm |
| Stroke | 400 mm |
| Acting type | Double acting |
| Port size | G1/8 |
| Rod thread | M10×1.25 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 800 mm/s |
| Cushion | Adjustable, 27 mm |
| Max standard stroke | Up to 1000 mm |
Specifications follow the official AirTAC SI datasheet (now discontinued). The SAID32X400S carries the same ISO 15552 ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø32mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 402 N | 346 N |
| 0.7 MPa | 563 N | — |
| Max (@1.0 MPa) | 82 kgf | |
The SAID32X400S produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SID Series Double-Rod Cylinder SID32X400S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 32 | Bore size in mm. |
| ×400 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Legacy SI-family variants: SID (double rod), SIJ (adjustable stroke) — each maps to its SAI equivalent (SID→SAID, SIJ→SAIJ). Rod material: carbon steel (blank) / SUS420J2 (A) / SUS304 (B).
Where the Airtac SID Series Double-Rod Cylinder SID32X400S Is Used
Equal-Force Transfer
Drives a workpiece shuttle equally in both directions using the 345 N (@0.5 MPa) push and pull force, preventing speed discrepancies between extend and retract.
Dual-Side Cam Sensing
Uses the rear exiting rod to carry a sensor cam, allowing external position tracking without consuming the primary working stroke space.
Anti-Rotation Tooling
The dual-rod geometry resists torsional twist during clamping or pressing, maintaining alignment for precision tooling over the 400 mm travel.
Replacing the Airtac SID Series Double-Rod Cylinder SID32X400S with the SAID32X400S
To replace the discontinued SID32X400S, install the direct replacement SAID32X400S, which matches the ISO 15552 mounting interface, 32 mm bore, 400 mm stroke, and G1/8 port. Size both directions by checking equal force: if 345 N (@0.5 MPa) is insufficient, step up to the 40 mm bore (528 N). A double rod is right when you need equal both-ways force, anti-rotation stability, or a back rod to carry a sensor cam. Reuse FA, LB, or TC mounts. The -S magnet enables legacy CS1-B/DS1-B sensors. For this 400 mm stroke, add external guides to prevent rod-bending under side-load.
Replacement checklist
- ✓ Same ISO 15552 interface → SAID32X400S
- ✓ Same bore / stroke / force
- ✓ Port/thread type (PT/G/NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Mounting reused (FA/FB/CA/CB/CR/LB/TC)
Airtac SID Series Double-Rod Cylinder SID32X400S FAQ
Yes, the AirTAC SID32X400S is discontinued. The direct replacement is the SAID32X400S. It shares the same ISO 15552 interface, 32 mm bore, 400 mm stroke, G1/8 port, and equal-both-ways force, but adds an upgraded two Y-shaped one-way piston seal for longer life.
Because it is a double-rod cylinder, force is equal both ways: 345 N @0.5 MPa, 483 N @0.7 MPa, and 621 N @0.9 MPa. Speed is 30-800 mm/s. Air cushions are 27 mm at each end.
Related AirTAC SAI Cylinders
Request a Quote for the SAID32X400S
Send us the quantity and destination. We confirm price, stock and lead time on the SAID32X400S replacement — usually within 7-8 hours.